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Are brown cows or black cows better?


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#1 BMAD

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Posted 25 January 2014 - 02:51 AM

Four black cows and three brown cows give as much milk in five days as three black cows and five brown cows give in four days. Which kind of cow provides more milk,
black or brown?

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#2 bonanova

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Posted 25 January 2014 - 04:35 AM

Spoiler for looks like


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The greatest challenge to any thinker is stating the problem in a way that will allow a solution.
- Bertrand Russell




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